Zac Efron was recently seen shooting Neighbors 2: Sorority Rise in Los Angeles. He was on a horse for one scene, and revealed that being a cowboy isn't his strong suite. Zac had a bit of trouble mounting the horse but once he was on it was smooth sailing. Also seen on set were Seth Rogan and Chloe Moretz as well as Zac Efron's girlfriend Sami Miro.