READ MORE: 10 Richest Professional Cheerleaders-Turned-Celebrities On TikTok, Bella Denton shared a video detailing the shocking amount of time it takes cheerleaders to get their pom-poms game ...

“It’s not my skill set,” Keaton, 73, told PEOPLE of cheerleading. “Learning cheers for the movie was hard!” Poms — also starring Alisha Boe, Pam Grier and Rhea Perlman — opens on Friday.