Wednesday night’s “Behind the Screen” WGA West party at the Capitol Grille underlined how long screenwriters have to wait to see their scripts turn into movies.

A decade is often the case, such as with Margaret Nagle’s Sudan refugee drama “The Good Lie,” launched originally as “The Lost Boys of Sudan.” “We lost our producer Bobby Newmyer so I wound up taking a seven-year break and I did become a better writer,” she recalled.

Scott Alexander and Larry Karaszewski noted that they spent about a decade developing the Margaret Keane biopic “Big Eyes” before serendipity stepped in.

Tim Burton, who had directed from the Alexander-Karaszewski script for “Ed Wood,” was on board to produce in early 2013 when producers met with Burton — who was on the awards circuit for “Frankenweenie” while Christoph Waltz was promoting “Django Unchained.”

“They kept running into each other,” Alexander recalls. “Tim told him about ‘Big Eyes’ and within two weeks we had Tim directing with Christoph and Amy Adams starring.”

Foxcatcher” co-writer E. Max Frye allowed that screenwriting’s compensation includes seeing the right actors on the big screen.

(Pictured: “Big Eyes” writers Scott Alexander and Larry Karaszewski at the WGA West party)