Surprise, surprise: "Liz & Dick," tonight's heavily hyped Lifetime movie starring jewel-hungry, scandal-prone former child star Lindsay Lohan as jewel-hungry, scandal-prone former child star Elizabeth Taylor, is not that good. The Hollywood Reporter's Tim Goodman balked at what he suggests is incredulously contrived dialogue, such as when Grant Bowler's Dick coos to a distraught Liz, "I will love you even if you get as fat as a hippo." "Seriously," snarks Goodman, "He says that."Yeah, well, seriously -- the real Richard Burton said a lot of things, aloud and in his daily letters to Taylor, that were much nuttier, much more grandiose than that. If Liz and Dick is neither as fun nor as poignant as a dramatization of perhaps the greatest destined-but-doomed romance of the 20th century could or should be, the problem is not the not-quite-human performances or the sometimes over-the-top dialogue. If anything, Liz and Dick is too tasteful, too restrained; if anything, Lohan and Bowler do too good a job of approximating real people.