Fashion Ripped Jeans Pocket

Movie question again…..?
Seriously no ones trying hard enough… Its an american movie possibly made in the eighties, where the back pockets in jeans get ripped because he puts on size too small. Goes to a meeting (fashion) and people think he is forreal and a fad takes off. Not big fish! Theres more to the story but thats what I remember in it. I reckon theres a tall guy in it. Is it called the tall guy????
“So fine” (1981) with Ryan O’Neal and Mariangela Melato
I’m Missing You; Episode 5


