Larry Hagman in “Stardust.”
 
In this excerpt from British TV show The Real…, Larry Hagman spares no details in describing the time he drove Keith Moon to rehab after the drummer over-indulged in Black Beauties (amphetamine). Moon and Hagman were friends, having originally met on the set of Stardust, a 1973 movie about the Brit rock business starring David Essex.
 

 
Thanks to Charles Lieurance.