October 7, 2016 11:25 AM EDT

Emily Blunt’s buzzy new film, The Girl on the Train, is the kind of drama that sets hearts racing, but the actress revealed that life on set wasn’t always full of gravitas.

During an appearance on The Late Show with Stephen Colbert, Blunt shared that she and co-star Justin Theroux would often decompress by watching acting advice videos and even made a few of their own. The host then asked her to coach him on giving different feeling to his often used “Stick around, we’ve got a great show!”

Blunt obliged, resulting in some truly emotional renditions. Watch the full clip below.


Write to Cady Lang at cady.lang@timemagazine.com.

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