Corey Haim and Corey Feldman Corey Haim and Corey Feldman

Corey Haim's tragic death exposed widespread confusion about him and his frequent collaborator Corey Feldman, as many confessed via Twitter that they don't know which Corey is which. The two shared much in common, besides the name Corey: early roles in Stephen King projects, joint film appearances, eventual struggles with drugs, and a dual comeback attempt on the A&E show The Two Coreys. For those of us who grew up with the Coreys, there's no getting them confused. But for anyone unfamiliar with their work, here is our quick guide to the Coreys' respective careers:

Corey Feldman

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Corey Haim

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His run of films with Feldman included the cult classic The Lost Boys, License to Drive, Dream a Little Dream, and, as their careers sagged in the mid-90s, the straight-to-video National Lampoon's Last Resort. His '90s films also included the action film Prayer of the Rollerboys, a Dream a Little Dream sequel that again paired him with Feldman, and Demolition High and Demolition University.

In a 2004 interview with The Sun, he said he was sober and happy but described years of drug use. He told the paper he began drinking beer during Lucas and smoked his first joint during Lost Boys. Eventually he took 85 valium a day, he said. The Two Coreys on A&E found him struggling with his career and to maintain his friendship with Feldman. He later appeared with Feldman in the straight-to-DVD sequel Lost Boys: The Tribe and had a memorable appearance in Crank 2: High Voltage.

He had several projects in development at the time of his death.

What was your favorite film with the Coreys?