You can insert a blank slide into a movie to give you a slide with a "clean canvas". Blank slides are useful if you need to place credits, logos, or other text in a movie. (Example)
Open a Captivate movie.
Select the slide directly after the location where the new slide should appear. (For example, if you want to insert the blank frame as Slide 6 of your movie, click on the slide currently labeled Slide 6.)
From the Insert menu, select Blank Slide.
The new slide is added to your movie. You can edit and work with the new slide just like other slides in the movie.