Cleveland Cavaliers' basketball star Lebron James is part of the cast of the romantic comedy movie "Trainwreck." Now fans speculate whether James is dumping the NBA for Hollywood.

James will play as himself in a small supporting role alongside lead actors Amy Schumer and Bill Hader. Directed by Judd Apatow, "Trainwreck" is about a commitment-phobic young woman who suddenly meets a decent guy and may now have to face her fears of commitment.

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This is James's first full-length big screen appearance, and the 30-year-old NBA star has been seen busy promoting the movie doing TV interviews and attending red carpet premieres according to reports from USA Today.

James also hosted a special screening at the Regal Cinemas Montrose Movie 12 in Akron for his beloved hometown.

"I try to do a lot for this city. Anyway I can continue to uplift the city and the things that I do. It always kinda made sense to me, and this one did," he told Cleveland.com in an interview.

Seeing the Cavs star on the big screen has also spun rumors that James may apparently be transitioning to the movies after losing the NBA Finals to the Golden State Warriors. Famous Cleveland footballer Jim Brown was known to have walked away from his sports career and turned to doing movies.

But James quickly made it clear that he was not leaving the NBA, saying, "I'm not a movie star. I know what my day job is," the news site reported.

James just recently signed a contract with the Cavs, and reports said he could be on his way to signing a $200-million contract with the team in 2017.

Meanwhile, "Trainwreck" is written by Schumer who admits in an interview with the San Jose Mercury News that she actually shares a few personal traits with the lead character also named Amy. Schumer identifies with the role, and she revealed that she had to face her own "demons" while writing the story. "Trainwreck" opens Friday nationwide.

TagsTrainwreck, Lebron James Movie, Lebron James, Amy Schumer, Lebron Trainwreck