The 'Titanic' star is critical of the way some young actors behave behind the scenes on films.
"I had great examples set to me at a very young age and to this day I am still grateful for that because whenever I am working with a younger actor who I think might be slightly out of line, or getting a little bit too pleased with themselves, I know I have to set my good example and really set it well.
"I might be playing the lead but no one's trailer is going to be bigger than anyone else's, no one is going to have all these stars flopping around, no one is going to have a great big entourage," she said.
Winslet, 36, who is dating Richard Branson's nephew, businessman Ned Rocknroll, credits her parents and her mentor, actress Emma Thompson for keeping her grounded during the early years of her career.
Pics: Sidharth Shukla-Rashami Desai's sizzling chemistry at TV show launch
Ooh La Lana! WWE Diva flaunts sexy curves in these 30 pictures
Photos: Salman Khan returns from Jodhpur to Mumbai
15 'peach' perfect photos of Priyanka Chopra at People's Choice Awards 2017
62 going on 16: These photos of Rekha prove she is 'forever young'