Are there lego sets with both system and duplo bricks?

[Foreman]

Are there lego sets with both system and duplo bricks?

I ask because I think the Lego Movie 2 will have System and Duplo because it is about Duplo attacking a System town

[JopieK]

There are, mainly those serious play sets!

[Aanchir]

The tail of https://brickset.com/sets/4094-1/Motor-Movers is a Duplo part.

[MAB]

And many MOC builders use Duplo too, as filler under very large mountain or landscape structures.

[Blondie-Wan]

The Toys ‘R’ Us Bricktober promo for 2009 consisted of four 1x2x2 Duplo bricks (each printed with a quarter of a picture), a System 2x8 brick, and a System 2x8 plate, that involved collecting these over a 4-week period (one Duplo brick given each week, two of them with System elements) and joining them to form an image of a LEGO skeleton figure.