The LEGO Batman Movie' on HBO: Behold Michael Cera's Best Film Performance

His Robin is an utter delight <em>and</em> the key to the movie's success.

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Review: 'LEGO Batman' may be best Caped Crusader flick ever

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Michael Cera to voice Robin in The LEGO Batman Movie

Lego Batman Movie, The (Blu-ray) (BD) : Will Arnett, Zach Galifianakis, Michael Cera, Rosario Dawson, Ralph Fiennes, Chris McKay, Matthew Ashton, Dan Lin, Jill Wilfert, Will Allegra, Phil Lord, Christopher Miller

Holy Arrested Development, Batman: Michael Cera is Robin in the Lego Batman Movie - Polygon

Review: 'LEGO Batman' may be best Caped Crusader flick ever

When Batman (voiced by Will Arnett, reprising his role from The Lego Movie) tells the Joker (Zach Galifianakis) he's just not that important to him,

The Lego Batman Movie (Blu-ray + DVD)

The LEGO Batman Movie CLIP - Robin (2017) - Michael Cera Movie

The Lego Batman Movie - Wikipedia

Review: 'LEGO Batman' may be best Caped Crusader flick ever