<human>:  Did the Coen brothers ever collaborate with the Brothers Grimm?
<bot>: No, the Coen brothers are American filmmakers. They have never collaborated with the Brothers Grimm. The Coen brothers were born in 1954 and 1957. The Brothers Grimm died in 1859 and 1863. The Coen brothers are American filmmakers, so they have never collaborated with the Brothers Grimm. The Brothers Grimm are German storytellers, so they have never collaborated with the Coen brothers.