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Kevin Hart returned to work after his near fatal car crash in Calabasas, Calif. last month. Hart, 40, sustained three back fractures and underwent surgery to fuse his spine.

After spending a week in a rehab facility, Hart went home to continue his physical therapy last month. Now he has returned to work.

Hart met with his Jumanji co-stars, including Dwayne "The Rock" Johnson, Jack Black and Nick Jonas, to shoot a promo for the Jumanji sequel.

The three actors revised their busy schedules to shoot the promo with Hart.

But a source tells Us Weekly that the comedian has not fully recovered from his serious injuries.

"Kevin has a long way to go in his recovery," a source tells Us Weekly. "He had to be a part of the promotional shoot for Jumanji and he wasn't going to miss it. He was cleared to work for short periods of time. He has been at the studio for a few hours a day doing very small things. He will be working again this week and getting done what he needs to do."

Hart was seriously injured on September 1 after his 1970 Plymouth Barracuda veered off Mulholland Highway and landed on its roof in a ditch.

The Barracuda was driven by Hart's friend Jared Black who also suffered back injuries. Black's fiancee, personal trainer Rebecca Broxterman, managed to escape without serious injuries.

Black and Broxterman are suing Hart and an auto body shop for failure to equip the vintage sports car with safety devices such as airbags and seat belts.

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Two people injured in Kevin Hart's vintage car the night it crashed have lawyered up and plan to sue the comedian and the body shop that customized his muscle car.

Hart was a passenger in his 1970 Plymouth Barracuda driven by his friend Jared Black who lost control of the vehicle and veered off the road just after midnight on Sept. 1.

Both Hart and Black suffered serious back injuries in the crash, but Black's fiancee and Hart's personal trainer Rebecca Broxterman, who was sitting in the back seat, was not seriously hurt.

According to TMZ, Black and Broxterman have lawyered up and plan to sue Hart and the body shop that modified his car.

Broxterman and Black say Hart is negligent for failing to install standard safety features in the 720 horsepower car.

Hart reportedly didn't want safety features such as air bags because he wanted to maintain the car's 1970 authenticity. Airbags weren't standard equipment in all cars until the 1990s.

Broxterman and Black also plan to sue the bodyshop for going ahead with the job despite the car having no safety features.

Hart returned home after spending a week at a rehab facility. He underwent surgery to fuse his spine. He will receive physical therapy at home.

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Kevin Hart was discharged from a hospital and transferred to a residential rehabilitation facility 10 days after he underwent emergency back surgery.

Sources tell PEOPLE Hart was "in good spirits" after undergoing surgery to fuse his spine that was fractured in three places during a serious car crash on Sept. 1.

The 40-year-old Jumanji star was transferred to a rehab facility for intensive physical therapy to help him walk again.

He was spotted leaving L.A.'s Northridge Hospital Medical Center in a wheelchair before being loaded into a van for the trip to the rehab facility.

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"I'm grateful to be alive," he reportedly told an unidentified source who spoke to TMZ.

The comedian was a passenger in his vintage 1970 Plymouth Barracuda when the driver lost control and the vehicle careened down an embankment on the night of Sept. 1.

Hart underwent emergency surgery on Sept. 2. He was said to be in extreme pain and on potent intravenous painkillers.

He is expected to spend up to 4 months in rehab before heading home to continue his physical therapy.

Hart reportedly pressured his team to downplay the seriousness of his back injury because he has movies and TV projects in production.

In a 911 audio obtained by TMZ, a woman believed to be Hart's wife Eniko, 35, told a dispatcher he couldn't walk and he was "not coherent" approximately an hour after the crash.

TMZ reports Hart’s car will be disassembled by the California Highway Patrol to assist in their investigation of the crash.

The results of their investigation may help change vehicle safety laws and require dealerships to install safety harnesses and airbags when selling vintage cars.

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Kevin Hart is on a long road to recovery after injuring his spine in a serious single car crash in Calabasas, California.

A surgeon fused the 40-year-old comedian's back after his spine was fractured in three places, and now Hart will be transferred to a rehabilitation facility where he will remain for 4 months.

Hart's camp originally said he did not injure his spinal cord, but sources say Hart did suffer an injury to his spinal cord that affects his mobility from the waist down.

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Hart's family, including his wife Eniko and children will take active part in his physical therapy.

A source tells The Blast Hart needs at least 4 months of physical therapy before he will be able to walk onto a movie set.

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Sources close to the situation tell The Blast Hart needs intensive physical therapy at a rehab facility where he can be monitored closely.

The Jumanji star is reportedly in extreme pain and is still dependent on potent painkillers.

According to The Blast, as soon as doctors and physical therapists determine Hart is stable enough to do the physical therapy in an outpatient environment, he will be released from the rehab facility.

Hart routinely updated his social media with photos and videos that showed him working out or running in marathons.

"It helps that he was physically in such great shape," one source told The Blast.

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