He specialized in robust action pictures, particularly westerns. He excelled at bringing to life tautly written stories about tough characters facing difficult circumstances. Conversely, just as often, he failed to redeem poorly written material, turning out an equally inadequate picture. Throughout his career he regularly alternated hits (such as Siste tog fra Gun Hill (1959), De syv uovervinnelige (1960), Den store flukten (1963), Ørnen har Landet (1976)) with misses (such as Den gamle mannen og havet (1958), Besatt av kjærlighet (1961), En pike ved navn Tamiko (1962), Et vogntog med whisky (1965)). He has also been criticized for his lack of stylistic trademarks, though his best films remain exciting to watch.
