The LEGO Movie 2: Phil Lord and Chris Miller Explain Their Meta Universe - IGN

The producers also confirm that The LEGO Batman Movie takes place within the same child's imagination.
The producers also confirm that The LEGO Batman Movie takes place within the same child's imagination.

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No One Wanted Phil Lord Or Chris Miller To Make A LEGO Movie

The LEGO Movie 2: Phil Lord and Chris Miller Explain Their Meta

Phil Lord & Christopher Miller explain their LEGO Movie meta-universe

Lord and Miller initially turned down The LEGO Movie

The LEGO Movie 2's Director Tried To Talk Phil Lord And Chris

The Lego Movie 2: The Second Part, JH Movie Collection Wiki

The LEGO Movie 2: Phil Lord and Chris Miller Explain Their Meta

The LEGO Movie 2: Phil Lord and Chris Miller Explain Their Meta