The Big Circus.

Whirling Circus needs a bank loan to keep the show going, but only on the condition he take along accountant Randy Sherman (Red Buttons) and publicist Helen Harrison (Rhonda Fleming) to help the circus. Unknown to Hank, his little sister Jeannie (Kathryn Grant) has held a lifelong ambition to fly on the trapeze and has been secretly training with the Colino act for the past year. An unknown saboteur sets a lion loose at a party thrown to celebrate the start of the circus season, terrifying the VIPs in attendance.