Queen of Outer Space (1958) on Netflix

We open with a long shot of a rocket awaiting launch. Captain Neal Patterson (Eric Fleming), Lt. Mike Cruze (Dave Willock) and Lt. Larry Turner (Patrick Waltz) wait outside the Colonel's office. When admitted they are introduced to Professor Konrad (Paul Birch) and told their next assignment is to take Konrad to the Space Station. They express disappointment at such an unimportant assignment, but Col. Ramsey (an uncredited Guy Prescott) cryptically tells them, "There are indications of serious trouble up there. Professor Konrad will tell you about it when you're underway."