'Grease' Turns 40! John Travolta and Olivia Newton-John Reflect on Classic Film's Legacy (Exclusive)

ET exclusively spoke with Travolta and Newton-John about the four decades since 'Grease.'  

Save videos for later by signing up or logging in

With "My Queue" you can quickly save videos to watch later.

To add an item to your queue just click the sign next to the video.

Once you've added a video visit "My Queue" to start watching!