Based on the body count its surprising that any of us have ancestors. The killing was done either to shock or impress the audience & although it wasn't necessary to have such a talented cast to do that at least it was done on an equal opportunities basis
Sandy Duncan does well – the consistent James Gregory is in support but Joe Flynn steals every scene he's in and especially the excellent swimming pool scene.
Peck's character is dying which suits his acting style but its hard to determine how far rigor mortis has set in. The plot loses a star for its blood sport loving characters – Hayward has nothing to do so she says she will go out and shoot some wildlife.