Measurements of the Hall coefficient (R(H)) were carried out for a polycrystalline YBa2Cu3O7-y film, a well oriented YBa2Cu3O7-y film and an oriented GdBa2Cu3O7-y film. Sign change of R(H) was observed for the two YBa2Cu3O7-y films near T(c), but not for the GdBa2Cu3O7-y film which contains partly the component of (110) orientation. The R(H) anisotropy model proposed previously turns out to be incorrect. Why the YBa2Cu3O7-y films experience sign change of R(H) while the GdBa2Cu3O7-y film does not is tentatively investigated.
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