  We study the interaction effects on thin films of topological mirror Kondo
insulators (TMKI), where the strong interaction is expected to play an
important role. Our study has led to the following results: (1) We identify a
rich phase diagram of non-interacting TMKI with different mirror Chern numbers
in the monolayer and bilayer thin films; (2) We obtain the phase diagram with
interaction and identify the regimes of interaction parameters to mimic bosonic
symmetry protected topological phases with either gapless bosonic modes or
spontaneous mirror symmetry breaking at the boundary; (3) For the spontaneous
mirror symmetry breaking boundary, we also study various domain-wall defects
between different mirror symmetry breaking order parameters at the boundary.
Our results reveal that the thin film TMKI serves as an intriguing platform for
the experimental studies of interacting topological phases.
