Seth Rogen has insisted his Guilt Trip co-star Barbra Streisand doesn't deserve her diva reputation.

The pair play a mother and son who embark on a road trip in the movie, and Seth was impressed by the Oscar-winner's approach to her work.

"If anything, it showed me that I should maintain sanity," he said.

"There's no excuse to be crazy. Because Barbra's not crazy. She acts very reasonably and she can get away with a lot of (stuff) that she doesn't pull. I've seen people with much less power than her get away with crazier (things) than she's ever pulled... She could go bonkers and she doesn't do anything."

Seth, 30, confessed The Way We Were star reminds him of his own mother.

"I think there's a whole generation of mothers who kind of model themselves off of Barbra. She's the patient zero of Jewish mothers," he said.

" A lot of people see the movie from all races and nationalities and they're like, 'Oh man, she reminds me so much of my mother,' and I think it's because, it's probably because your mother is a fan of hers and acts like her."